JP7267873B2 - air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system that adjusts the room temperature of a room to a target temperature.

Conventionally, this type of air conditioning system includes a heat source that heats the air, a blowing means that draws in the air in the room and blows out the air heated by the heat source, a room temperature detection means that detects the room temperature, and a room temperature detection means. When the detected room temperature is equal to or lower than the heating start threshold, there is known an air conditioner having a control means capable of executing heating control for adjusting the room temperature to a target temperature by performing a heating operation (for example, Patent Document 1 reference).

The air conditioning system described in Patent Document 1 is a heating system, but it also adopts a system that cools air as a heat source, and sets a cooling start threshold value, which is a reference value for starting the cooling operation of the air conditioner, in the control means, and detects the room temperature. It is also possible to construct a cooling and heating system by enabling cooling control when is equal to or greater than the cooling start threshold.

JP-A-2003-269735

The heating start threshold or cooling start threshold used for heating control or cooling control of the air conditioning system is calculated based on annual temperature changes, etc., and the heating start threshold or cooling start threshold is selected according to the season. However, the heating start threshold or cooling start threshold itself is a fixed value and cannot be changed. In other words, the above air conditioning system is for everyone. However, not only does the sensible temperature differ from person to person, but even for the same user, the temperature may change depending on the physical condition of the user. is desired.

In view of the above points, it is an object of the present invention to provide an air conditioning system that can also perform heating control or cooling control according to user's preference.

In order to solve the above problems, the present invention provides an air conditioning system for adjusting the room temperature of a room to a target temperature, comprising a heat source that heats or cools the air, and draws in the air in the room and heats or cools the air with the heat source. Air blowing means for blowing into the room, room temperature detecting means for detecting the room temperature, and when the detected room temperature detected by the room temperature detecting means is equal to or lower than the heating start threshold or equal to or higher than the cooling start threshold, heating operation or cooling operation is performed to bring the room temperature to the target temperature. and a control means capable of performing heating control or cooling control to be adjusted, comprising an operation switch capable of manually starting and stopping heating or cooling by the air conditioner, the control means comprising: Even if the detected room temperature is higher than the heating start threshold, when the operation switch is manually operated to start heating, the air conditioner is operated for heating and the heating start threshold is updated to be higher than the value immediately before the manual operation, or Even if the detected room temperature is lower than the cooling start threshold, when the operation switch is manually operated to start cooling, the air conditioner is operated for cooling, and the cooling start threshold is updated to be lower than the value immediately before the manual operation. and

According to the present invention, when the operation switch is manually operated to start heating or cooling, the control means does not automatically control the heating or cooling operation of the air conditioner regardless of the room temperature detected by the room temperature detection means. to start the heating operation or cooling operation of the air conditioner. Therefore, the cooling and heating by the air conditioning system can be performed not only by automatic control by the control means, but also by the judgment of each user. Further, when the operation switch is manually operated to start heating or cooling, the control means sets the heating start threshold higher than that immediately before the manual operation in the case of starting the heating operation, and sets the cooling start threshold manually in the case of starting the cooling operation. Since the value is updated to be lower than the value immediately before the operation, the heating start threshold value or the cooling start threshold value of the control means becomes a value according to the user's preference after the manual operation of starting heating or cooling with the operation switch. Therefore, the air conditioning system can also automatically control heating or cooling according to the user's preference.

In the present invention, the room is a bathroom, and the bath room temperature is adjusted to the target temperature, further comprising bathing detection means for performing bathing detection including entrance/exit detection of the bathroom, wherein the control means detects bathing. It is determined whether or not it is bathing based on the detection result of the means, and when it is determined that it is bathing, the bathing room entry time is stored and acquired as the bathing start time, and from the bathing start time acquired over a predetermined period The bathing start time for each day is estimated and stored as the estimated bathing start time, and after a predetermined period, the heating operation or cooling operation start time of the air conditioner so that the bath room temperature reaches the target temperature by the bathing start estimated time. should be set. According to this, the user does not have to manually set the start time of the heating operation or the cooling operation in the control means so that the bath room temperature reaches the target temperature by the estimated bathing start time, which improves usability for the user.

Further, in the present invention, the control means can communicate with a hot water supply device that fills a bathtub installed in the bathroom with hot water, wherein the control means causes the hot water supply device to supply hot water at a time different from the estimated bathing start time. When filling is performed, it is preferable that the heating control of the air conditioner is executed from the hot water filling start time without being based on the bathing start estimated time. According to this, since the heating control of the air conditioner is executed from the time when the water heater starts filling the hot water, the bathroom is already heated when taking a bath, and the user who enters the bathroom can feel a cold sensation. Almost gone.

In the present invention, the air conditioner also has ventilation means for exhausting the air in the bathroom to the outside and introducing air outside the bathroom into the bathroom to replace the air in the bathroom. In the air conditioner capable of ventilating, the control means determines that the last bathing of the day is finished when the bathing detecting means detects leaving the room after the estimated time of the last bathing start of the day. It is desirable to operate ventilation. According to this, since the control means automatically causes the air conditioner to perform ventilation operation based on the determination of the end of the last bathing of the day, the user does not need to manually operate the ventilation operation after the last bathing of the day. , user convenience is further improved.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows the bathroom heating system which is one Embodiment of the air conditioning system of this invention. FIG. 2 is a flowchart showing heating control executed by control means shown in FIG. 1; FIG. A flow chart showing one form of bathing detection in the heating control shown in FIG.

A bathroom heating system 1, which is an embodiment of the air conditioning system of the present invention, will be described below with reference to FIG. A bathroom heating system 1 includes a hot water supply device 2 capable of performing a hot water filling operation for generating hot water and supplying hot water to a bathtub BT installed in a bathroom BR, and an air conditioner 3 capable of performing a heating operation for heating the bathroom BR. and

The hot water supply device 2 employs a gas hot water heater, which is a type of heat source installed outside (outdoors, etc.) of the bathroom BR. Tap water and fuel gas are supplied to the water heater 2 through a water supply pipe 41 and a gas supply pipe 42, respectively. , various pipes, various valves, various sensors, hot water supply control means 21, and the like. Between the hot water supply device 2 and the bathtub BT, there is interposed a first feed pipe 43 that supplies the hot water generated by the hot water supply device 2 to the bathtub BT. Between the hot water supply device 2 and the air conditioner 3, a second feed pipe 44 for supplying a part of the hot water generated by the hot water supply device 2 to the air conditioner 3, and a hot water after heat exchange in the air conditioner 3. A return pipe 45 for recovering the hot water supply device 2 is interposed.

The air conditioner 3 is installed on the ceiling of the bathroom BR, and has an inlet, an outlet, and a ventilation port (not shown). Both the inlet and the outlet face the inside of the bathroom BR, and the ventilation port is open to the outside. In addition, the air conditioner 3 sucks air from the bathroom BR, the hot water coil 31 as a heat source through which part of the hot water generated by the hot water heater 2 flows, and blows out the sucked air from the bathroom BR to the bathroom BR. Blowing means 32 such as a blowing fan, and ventilation means such as a fan for exchanging the air in the bathroom BR by exhausting the air in the bathroom BR to the outside through the ventilation port and introducing the air outside the bathroom BR into the bathroom BR along with this exhaust. 33, air conditioning control means 34, infrared light receiving/emitting means 35, and the like. During the heating operation, the air conditioner 3 circulates the hot water supplied from the hot water supply device 2 through the second supply pipe 44 and the return pipe 45 inside the hot water coil 31, and sucks it from the suction port by the operation of the air blowing means 32. After the hot air in the bathroom BR is heated by the hot water coil 31, the warm air is blown out from the outlet to the bathroom BR. In addition to the heating operation, the air conditioner 3 can perform a ventilation operation, etc., in which the air in the bathroom BR is exchanged with the air outside the bathroom by the ventilation means 33 . Here, the ventilation operation includes a drying operation of exchanging air in the bathroom BR while heating the bathroom BR.

A dressing room remote controller 36 for manually operating the air conditioner 3 is installed on the inner wall surface of the dressing room adjacent to the bathroom BR. The dressing room remote controller 36 includes a display screen for displaying the operation status, etc., and various switches for starting, stopping, or adjusting each operation of the air conditioner 3 by manual operation by the user. Further, the dressing room remote controller 36 is connected to the air conditioner 3 by wire, and an input signal by manual operation of the switch is inputted to the air conditioning control means 34 of the air conditioner 3 by wire communication.

The hot water supply control means 21 and the air conditioning control means 34 are both composed of a microcomputer having a CPU, a ROM, a RAM, an A/D converter, an interface, and the like. The corresponding program is pre-installed.

The bathroom heating system 1 also includes a bathroom remote controller 5 installed on the inner wall surface of the bathroom BR and a kitchen remote controller 6 installed on the inner wall surface of the kitchen. Both the bathroom remote controller 5 and the kitchen remote controller 6 have display screens 51 and 61 that display the set temperature of the hot water and the current time, etc., and the operation of the water heater 2 and the air conditioner 3 can be started or stopped by the user's manual operation. , or various switches 52, 62 for adjustment. Among these switches 52, 62 are power switches 52a, 62a for starting or stopping power supply to the water heater 2 and the air conditioner 3, an automatic hot water filling switch 52b for causing the water heater 2 to fill the bathtub BT with hot water, 62b, automatic heating switches 52c, 62c for causing the air conditioner 3 to automatically perform the heating operation, and operation switches 52d, 62d for forcibly starting or stopping the heating operation of the air conditioner 3 are provided.

The bathroom remote controller 5 and the kitchen remote controller 6 are interlocked with each other, and the power switches 52a, 62a, the automatic hot water filling switches 52b, 62b, the automatic heating switches 52c, 62c, and the operation switches 52d, 62d are either the bathroom remote controller 5 or the kitchen remote controller 6. On the other hand, when manually operated by the user, both the bathroom remote controller 5 and the kitchen remote controller 6 are simultaneously operated. The bathroom remote controller 5 and the kitchen remote controller 6 are connected to the hot water supply apparatus 2 by wire, and input signals generated by manual operation of the power switches 52a and 62a and the automatic hot water filling switches 52b and 62b are transmitted to the hot water supply control means 21 by wire communication.

Further, the bathroom remote controller 5 is provided with an infrared light receiving/emitting means 53 capable of bidirectionally transmitting/receiving infrared rays with the infrared light receiving/emitting means 35 of the air conditioner 3 . When the power switches 52a, 62a, the automatic heating switches 52c, 62c, and the operation switches 52d, 62d are manually operated, an input signal corresponding to the contents of the operation is transmitted from the infrared light receiving/emitting means 53 to the infrared light emitting/receiving means 35 by wireless communication. be. Information signals regarding the maximum heating capacity of the air conditioner 3 and the like are transmitted from the infrared light emitting/receiving means 35 to the infrared light emitting/receiving means 53 by wireless communication. Furthermore, the bathroom remote controller 5 is provided with a temperature sensor 54 as room temperature detection means for detecting the bath room temperature of the bathroom BR and a humidity sensor 55 for detecting the humidity of the bathroom BR.

The bathroom heating system 1 includes a control means 7 for controlling each operation of the hot water supply device 2 and the air conditioning device 3 , and the control means 7 is built in the bathroom remote control 5 . Similarly to the hot water supply control means 21 and the air conditioning control means 34, the control means 7 is also composed of a microcomputer including a CPU, ROM, RAM, A/D converter, interface, etc. The program corresponding to the control of is installed in advance.

The control means 7 executes heating control of the air conditioner 3 . The heating control executed by the control means 7 is such that when the detected bath room temperature of the bathroom BR detected by the temperature sensor 54 is equal to or lower than the heating start threshold, the air conditioner 3 is operated for heating to adjust the bath room temperature to the target temperature. be. To enable this heating control, the control means 7 stores a preset target bath room temperature and heating start threshold. The target temperature is set at a temperature at which it is estimated that the majority of users who enter the bathroom BR during bathing will not feel a cold sensation, but as described above, the sensible temperature of each user and even the same person differs. Therefore, the setting can be changed in units of, for example, 1° C. or more according to the user's preference. On the other hand, the heating start threshold is set in advance as a reference temperature estimated at which the majority of users who enter the bathroom BR when bathing will feel a cold sensation, based on totaling annual changes in the bath room temperature when the heating operation is not performed. . For example, the temperature is set as 10° C. and 15° C. in 5° C. increments. However, in the bathroom heating system 1, unlike the above-described conventional heating system, the heating start threshold value stored in the control means 7 can also be changed in units of, for example, 1°C according to the user's preference. ing.

Moreover, the bathroom heating system 1 is also provided with a human sensor 8. - 特許庁A human detection sensor 8 is installed on the ceiling of the bathroom BR near the bathroom door, and detects the entrance and exit of the user to the bathroom BR. The human sensor 8 is connected to the control means 7 by wire, and outputs a detection signal indicating that a user has entered or exited the room to the control means 7 . Various sensors such as an infrared sensor and an ultrasonic sensor can be used for the human sensor 8 . In the bathroom heating system 1, the human sensor 8, or the human sensor 8 and the humidity sensor 55 constitute bathing detection means.

Next, with reference to FIG. 2, heating control executed by the control means 7 of the bathroom heating system 1 will be described. When one of the power switches 52a and 62a shown in FIG. 1 is manually turned on by the user, power is supplied to the hot water supply device 2 and the air conditioning device 3 via the hot water supply control means 21 and the air conditioning control means 34, Both devices 2 and 3 are in a standby state.

After that, when one of the automatic heating switches 52c and 62c is manually turned on by the user (STEP 1), the air conditioner 3 enters the automatic heating mode, and the bathing start estimated time is set to the bathroom remote controller 5 and the kitchen remote controller 6. is displayed on the display screens 51 and 61 of . The automatic heating mode continues unless either one of the automatic heating switches 52c, 62c is turned off by the user's manual operation. In this automatic heating mode, the control means 7 automatically executes the heating control of the bathroom BR at the execution start time of the heating control which is set and stored based on the estimated bathing start time. Here, the estimated bathing start time means that the control means 7 stores and acquires the bathing start time over a predetermined period of one day or more, and performs statistical processing such as calculation of an average value on the acquired bathing start time. is the time estimated by For this reason, the heating control in the automatic heating mode may not be executed for bathing on the first day after installing the bathroom heating system 1 . However, if it is possible to set and store the scheduled bathing start time in the control means 7, the above scheduled bathing start time is regarded as the estimated bathing start time on the first day, and the heating control in the pseudo automatic heating mode is performed. It is viable. If either one of the automatic heating switches 52c and 62c is not turned on, the air conditioner 3 does not enter the automatic heating mode, and the user manually operates the switch of the dressing room remote controller 36 to start and stop the heating operation. can be executed by

After entering the automatic heating mode, when one of the operation switches 52d and 62d is manually turned on by the user (STEP 2), the bath room temperature Th detected by the temperature sensor 54 at this time is higher than the heating start threshold. In this case, the heating start threshold is updated by increasing it by 1° C. (STEP 3), and the air conditioner 3 is caused to perform normal heating operation (STEP 4). STEP 3 is a control assuming a case where the user judges that the bath room temperature Th of the bathroom BR is low due to sensible temperature, etc., and that the bathroom BR is not heated to a comfortable level by the bathing start time. In this embodiment, the heating start threshold in the automatic heating mode is set to the reference temperatures of 10°C and 15°C in increments of 5°C. Therefore, in the control means 7, the upper limit of the number of ON operations by the user for either one of the operation switches 52d and 62d is 4, and the heating start threshold is increased to 4°C, that is, the setting is changed to 14°C and 19°C. I am making it possible. Incidentally, the normal heating operation of the air conditioner 3 is controlled by the air conditioning control means 34 .

When both of the operation switches 52d and 62d are turned off and one of the automatic hot water filling switches 52b and 62b is turned on by the user's manual operation (STEP 5), the control means 7 detects that the temperature sensor 54 is When it is determined that the detected bath room temperature Th is equal to or lower than the heating start threshold (15° C. in this embodiment) (STEP 6), the air conditioner 3 is operated for heating, and heating control is performed to adjust the bath room temperature Th to the target temperature. (STEP7). On the other hand, when it is determined that the bath room temperature Th is higher than 15° C., the control proceeds to STEP8. The transition to the control in STEP8 is similarly carried out in STEP5 when the automatic hot-water filling switches 52b and 62b remain OFF. In STEP 8, the control means 7 determines whether or not the bath room temperature Th detected by the temperature sensor 54 is 15° C. or less, or whether or not the heating operation in the automatic heating mode has been executed even once on the same day (automatic execution of heating operation). When it is determined that the bath room temperature Th is 15° C. or less or that the automatic heating operation is to be performed, the air conditioner 3 waits to perform the heating operation. On the other hand, if it is determined that the bath room temperature Th is higher than 15° C. or that the automatic heating operation is not executed, the process returns to STEP1. The control means 7 is programmed to store the execution history of the automatic heating operation in order to determine whether or not the automatic heating operation should be executed.

Next, the control means 7 determines whether or not the estimated bathing start time (including the scheduled bathing start time) is before a predetermined time (STEP 9). In this embodiment, the predetermined time is set to 30 minutes. However, the predetermined time can be appropriately set in consideration of the maximum heating capacity of the air conditioner 3, the size and direction of the bathroom BR, and can be stored in the control means 7. Here, the time a predetermined time before the estimated bathing start time corresponds to the heating operation start time. Therefore, the control means 7 is also programmed to calculate the heating operation start time from the estimated bathing start time and the predetermined time, and to store the calculated heating operation start time. When determining that it is 30 minutes before the estimated bathing start time (heating operation start time), the control means 7 causes the air conditioner 5 to perform heating operation (STEP 7). If it is determined that it is not 30 minutes before the estimated bathing start time, the process returns to STEP1. As described above, in this embodiment, after the estimated bathing start time is estimated, the control means 7 sets the heating operation start time so that the bath room temperature reaches the target temperature by the estimated bathing start time. The heating operation time of the air conditioner 3 in the automatic operation mode is such that the bath room temperature reaches the target temperature by the estimated bathing start time and the user can feel a sufficient warmth even during bathing. can be set. In this embodiment, the heating operation time of the air conditioner 3 is set to 60 minutes. The heating operation time of the air conditioner 3 is stored in the air conditioning control means 34 in advance.

Thereafter, including the normal heating operation by the air conditioner 3 in STEP 4, the control means 7 determines whether or not bathing is being performed, that is, whether or not bathing is detected (STEP 10). One form of determination of presence/absence of bathing detection will be described with reference to FIG.

First, the human sensor 8 determines whether or not the user has detected entry into the bathroom BR (presence or absence of detection of entry) (STEP 31). When it is determined that there is room entry detection, the control means 7 stores the time when the detection signal of the human sensor 8 is input as the user's room entry time t, and the absolute humidity of the bathroom BR detected by the humidity sensor 55 as the initial absolute humidity. It is stored as humidity M0 (STEP 32). In this embodiment, the absolute humidity is the volume absolute humidity, and the unit is g/m ³ .

Next, the control means 7 accumulates the user's staying time in the bathroom and stores the maximum absolute humidity M1 during the stay based on comparison with the initial absolute humidity M0 (STEP 33). The control means 7 also has a timer function in order to realize the accumulation of the time spent in the bathroom. Thereafter, the control means 7 determines whether or not the user's staying time in the bathroom is longer than or equal to the first predetermined time, or whether or not the staying time is longer than or equal to the second predetermined time and the difference between the maximum absolute humidity M1 and the initial absolute humidity M0 (M1- M0) is equal to or greater than a predetermined value (STEP 34). In this embodiment, the first predetermined time period of the user's stay in the bathroom is set to 10 minutes and the second predetermined time period is set to 7 minutes, and the difference between the maximum absolute humidity M1 and the initial absolute humidity M0 ( M1-M0) is set to 5 g/ ^m3 . The first predetermined time, the second predetermined time, and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 are sample data estimated from general tendencies regarding bathing. remembered. The purpose of users entering the bathroom BR can be classified into bathing, cleaning the bathroom, drying the laundry in the bathroom, etc. Although it is qualitative, in the case of bathing, the staying time is longer than entering the room for other purposes. Absolute humidity tends to be high due to reasons such as a long period and a large amount of hot water used. Based on this tendency, the first predetermined time, the second predetermined time, and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 are set.

If it is determined that the bathing time is 10 minutes or more, or the bathing time is 7 minutes or more and the difference (M1-M0) between the maximum absolute humidity M1 and the initial absolute humidity M0 is 5 g/m ³ or more, bathing , the control means 7 stores and acquires the previously stored entry time t as the bathing start time (STEP 35). On the other hand, when it is determined that the above conditions are not satisfied, it is assumed that the user has entered the bathroom BR for a purpose other than bathing, and the control means 7 controls the previously stored entry time t, the initial absolute humidity M0, and the maximum absolute humidity Erase all of M1. After that, when the user leaves the room, the human sensor 8 outputs the detection signal to the control means 7 again (room exit detection). The control means 7 determines the presence or absence of this room exit detection (STEP 36). A case in which the control means 7 determines that the exit has been detected corresponds to the end of bathing. Determination of no detection of leaving the room should be made, for example, when the detection signal from the human sensor 8 is not input to the control means 7 for a predetermined time (for example, 10 minutes, etc.) from the re-input time of the detection signal from the human sensor 8. is exemplified. In this case, the predetermined time can be preset and stored in the control means 7 . Then, if it is determined in STEP36 that no exit has been detected, the process returns to STEP33 in order to handle the situation while the user is staying in the bathroom BR, ie, taking a bath. The bathing detection determination (STEP 10) shown in FIG. 2 is exemplified as described above.

Returning to FIG. 2, the control after determining whether or not it is bathing based on bathing detection in STEP 10 will be described. If it is determined to be a bathing, the control means 7 statistically processes the bathing start time acquired in STEP 35 shown in FIG. is stored (STEP 11). More reliable estimation of the bathing start time requires a predetermined period of about several weeks in units of one week, but the estimated bathing start time after the predetermined period matches the user's daily bathing tendency. A predetermined period for estimating the bathing start time is also preset and stored in the control means 7 .

Further, in the present embodiment, the ON/OFF determination of the operation switches 52d and 62d by the user's manual operation (STEP 2) is performed before the bath room temperature determination in the automatic heating mode or the determination of whether or not the automatic heating operation is executed (STEP 8). Therefore, even if the bath room temperature detected by the temperature sensor 54 is higher than the heating start threshold, the control means 7 prioritizes the normal heating operation of the air conditioner 3 over the heating control in the automatic operation mode. to heat the bathroom BR. Further, since the ON/OFF determination (STEP 5) of the automatic hot-water filling switches 52b and 62b by the user's manual operation is performed between STEP 2 and STEP 8, the control means 7 is not based on the estimated bathing start time. Heating control of the air conditioner 3 is executed from the time when the hot water filling operation is started, that is, when either one of the automatic hot water filling switches 52b and 62b is turned on. The heating control of the control means 7 in this case includes the control based on the bath room temperature determination in STEP 6 as described above.

When it is determined in STEP 10 that the user is not bathing, the control means 7 causes the air conditioner 3 to continue the heating operation for a predetermined time (for example, 60 minutes) (STEP 12), and after the predetermined time has elapsed, stops the heating operation (STEP 13). , STEP 1, and the air conditioner 3 is in a standby state until bathing. On the other hand, if it is determined in STEP 12 that the time is less than the predetermined time, the process returns to STEP 10 to continue determination of bathing detection. Note that the predetermined time for continuing the heating operation of the air conditioner 3 when it is determined that the user is not bathing is also set in advance and stored in the air conditioning control means 34 .

After the last estimated bathing start time of the day, the control means 7 receives a detection signal from the human sensor 8 when the user enters the bathroom BR, and then receives a detection signal from the human sensor 8 again. In other words, it is determined whether or not a person leaving the room is detected (STEP 14), as in STEP 36 shown in FIG. This determination is synonymous with determining whether or not the person leaving the room is the last bather among the bathers for the day, and the bathing of the last bather has ended. When the control means 7 determines in STEP 14 that the last input of the day has ended, the ventilation means 33 is operated to cause the air conditioner 3 to perform ventilation operation (drying operation when the blower means 32 is also operated) (STEP 15). . The ventilation operation time of the air conditioner 3 after bathing is stored in advance in the air conditioning control means 34 . When the ventilation operation time elapses, the air conditioner 3 stops the ventilation operation, returns to STEP 1, and enters a standby state until the next bathing. On the other hand, if it is determined in STEP 14 that the person leaving the room is not the last person to take a bath, even though the detection of the person leaving the room is input from the human sensor 8, the heating operation of the air conditioner 3 is stopped and the heating control by the control means 7 is performed in STEP 1. , and the air conditioner 3 is in a standby state until the next bathing.

By repeating the above heating control, when bathing is performed multiple times on the same day, one estimated bathing start time is obtained for each bathing, and an estimated bathing start time for each day is obtained. The heating control of the control means 7 based on time is performed individually. Specifically, in the heating control after returning to STEP 1 from STEPs 13 and 15 on the same day, the heating start threshold is the initial value (15 ° C. in this embodiment), and the heating start threshold is changed as described above. It can be performed up to four times equally at the estimated bathing start time. In other words, the control unit 7 associates each estimated bathing start time with one heating start threshold and stores it.

In the bathroom heating system 1, when the operation switches 52d and 62d are manually operated to start heating, regardless of the room temperature detected by the temperature sensor 54, the control means 7 does not automatically control the heating operation of the air conditioner 3. The heating operation of the air conditioner 3 is started. Therefore, the heating by the bathroom heating system 1 can be performed not only by automatic control by the control means 7 but also by the judgment of each user. Further, when the operation switches 52d and 62d are manually operated to start heating, the control means 7 updates the heating start threshold to be higher than the value immediately before the manual operation. After the operation, the heating start threshold of the control means 7 becomes a value according to the user's preference. Therefore, the bathroom heating system 1 can also automatically control the heating according to the user's preference.

In addition, since the control means 7 automatically sets the start time of the heating operation of the air conditioner 3 based on the estimated bathing start time, the user must adjust the temperature so that the bath room temperature reaches the target temperature by the estimated bathing start time. It is not necessary to manually set the start time of the heating operation in the control means 7, and the usability for the user is improved.

Furthermore, since the control means 7 can communicate with the water heater 2 , the heating operation of the air conditioner 3 can be linked with the hot water supply operation of the water heater 2 . That is, the control means 7 executes the heating control of the air conditioner 3 from the hot water filling start time by the hot water supply device 2 . Therefore, the bathroom BR is already heated when taking a bath, and the user entering the bathroom BR hardly feels cold.

Since the control means 7 automatically causes the air conditioner 3 to perform ventilation operation based on the determination of the end of the last bathing of the day, the user does not need to manually operate the ventilation operation after the last bathing of the day. User convenience is further improved.

Although the present invention has been described with respect to one embodiment, the present invention is not limited to the above embodiment. For example, when the operation switches 52 d and 62 d are manually operated to stop heating, the control means 7 can stop the heating operation of the air conditioner 3 without automatically controlling the heating operation of the air conditioner 3 . After the manual operation of stopping the heating, the air conditioner 3 can be manually operated by the switch of the dressing room remote controller 36 . The hot water supply device 2 may be an electric water heater, a heat pump, or a hybrid heat source such as a gas hot water heater. Furthermore, an electric heater may be used as the heat source of the air conditioner 3 . In this case, the second forward pipe 44 and the return pipe 45 can be omitted. Furthermore, the heat source for the air conditioner 3 can employ not only one that heats the air, but also one that cools it, or both. When a heat source that cools air is used, the air conditioner 3 can cool the bathroom BR, and the bathroom heating system 1 is changed to a bathroom cooling system. When both a heat source for heating air and a heat source for cooling air are used, the air conditioner 3 can cool and heat the bathroom BR. can. In this case, the bathroom heating system 1 is changed to a bathroom air conditioning system.

In the case of the bathroom cooling system or the bathroom air-conditioning system, a cooling start threshold value can be preset and stored in the control means 7, and 20° C. or the like can be exemplified as the cooling start threshold value. Moreover, an automatic cooling switch can be provided in the switches 52 and 62 of the bathroom remote controller 5 and the kitchen remote controller 6, respectively. When the user manually operates the automatic cooling switch, the control means 7 enters the automatic cooling mode and can execute cooling control. Furthermore, the operation switches 52d and 62d provided in the switches 52 and 62 can also be used to start or stop the cooling operation of the air conditioner 3 manually by the user. When the start of cooling is manually operated by the operation switches 52d and 62d, the control means 7 causes the air conditioner 3 to perform the cooling operation even if the room temperature detected by the temperature sensor 54 is lower than the cooling start threshold. can be updated to be lower than the value immediately before manual operation. Further, when cooling stop is manually operated by the operation switches 52d and 62d, the control means 7 can stop the cooling operation of the air conditioner 3 without automatically controlling the cooling operation of the air conditioner 3. FIG. After the manual operation to stop cooling, the air conditioner 3 can be manually operated by the switch of the dressing room remote controller 36 .

In addition, the automatic heating switches 52c and 52d, the automatic cooling switch and the operation switches 52d and 62d can also be provided on the dressing room remote control 36. FIG. Moreover, the temperature sensor 54, the humidity sensor 55, and the human sensor 8 are not particularly limited in their installation locations as long as they can reliably detect the detection target. For example, it may be installed inside the air conditioner 3 . Furthermore, as the air conditioner 3, one capable of intelligent communication with the hot water supply device 2 by wire can also be adopted. In this case, the infrared light emitting/receiving means 35 and 53 are not necessary, and when the switch of either the bathroom remote control 5 or the kitchen remote control 6 is manually turned on by the user, the air conditioning control means 34 of the air conditioner 3 is turned on. The control signal can be transmitted via the hot water supply control means 21 of the hot water supply device 2 .

The control means 7 may be built in the kitchen remote controller 6 or the air conditioner 3 or the like. Also, the room to be cooled and heated is not limited to the bathroom BR. Any room in the building may be used, and if the room is other than the bathroom BR, the water heater 2 can be omitted. In this case, the bathroom heating system 1 is changed to an air conditioning system. Furthermore, the air conditioner 3 can also be operated by a wireless remote controller. In this case, it is possible to make the air conditioner 3 IoT. Can be used as a wireless remote control. In addition, the IoT can target not only the air conditioner 3 but also the water heater 2. Therefore, the entire air conditioning system including the bathroom heating system 1 and the bathroom cooling system can be IoT. .

1 bathroom heating system (air conditioning system), 2 water heater, 3 air conditioner, 31 hot water coil (heat source), 32 blowing means, 33 ventilation means, 52d, 62d operation switch, 54 temperature sensor ( Room temperature detection means), 55 Humidity sensor (part of bathing detection means), 7 Control means, 8 Human sensor (part or all of bathing detection means), BR Bathroom (room), BT Bathtub.

Claims (4)

An air conditioning system that adjusts the room temperature of a room to a target temperature,
A heat source that heats or cools air, an air blower that draws in indoor air and blows out the air heated or cooled by the heat source into the room, a room temperature detector that detects room temperature, and a detected room temperature detected by the room temperature detector that starts heating. and a control means capable of executing heating control or cooling control for adjusting the room temperature to a target temperature by performing heating operation or cooling operation when the temperature is below the threshold or above the cooling start threshold,
Equipped with an operation switch that allows manual operation to start and stop heating or cooling by the air conditioner,
Even if the detected room temperature is higher than the heating start threshold, when the operation switch is manually operated to start heating, the control means causes the air conditioner to operate for heating, and updates the heating start threshold by making it higher than the value immediately before the manual operation. Alternatively, even if the detected room temperature is lower than the cooling start threshold, when the operation switch is manually operated to start cooling, the air conditioner is operated for cooling, and the cooling start threshold is updated to be lower than the value immediately before the manual operation. An air conditioning system characterized by: 2. The air conditioning system according to claim 1, wherein the room is a bathroom, and the bath room temperature is adjusted to the target temperature,
Equipped with bathing detection means for performing bathing detection including entrance/exit detection to the bathroom,
The control means determines whether or not the user is bathing based on the detection result of the bathing detection means. The bathing start time for each day is estimated from the bathing start time acquired over a period of time and stored as the estimated bathing start time. An air conditioning system characterized by setting a start time for operation or cooling operation. 3. The air conditioning system according to claim 2, wherein said control means is capable of communicating with a water heater that fills a bathtub installed in said bathroom with hot water,
When hot water is filled by the water heater at a time different from the estimated bathing start time, the control means executes the heating control of the air conditioner from the hot water filling start time without being based on the estimated bathing start time. An air conditioning system characterized by: 4. The air conditioning system according to claim 2 or 3, wherein the air conditioner exhausts the air in the bathroom to the outside, and along with this exhaust, the air outside the bathroom is introduced into the bathroom to exchange the air in the bathroom. In those that also have a ventilation means to ventilate and are also capable of ventilation operation,
The control means determines that the last bathing of the day is completed and causes the air conditioner to operate for ventilation when the bathing detection means detects the leaving after the estimated time of the last bathing start of the day. air conditioning system.

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